Base | Representation |
---|---|
bin | 10110101110011000… |
… | …00111001100000000 |
3 | 1011111020211221111002 |
4 | 23113030013030000 |
5 | 144441223224300 |
6 | 5334340511132 |
7 | 611222040602 |
oct | 132714071400 |
9 | 34436757432 |
10 | 12200211200 |
11 | 51a0779281 |
12 | 24459ab4a8 |
13 | 11c5793ca8 |
14 | 83a457172 |
15 | 4b611c5d5 |
hex | 2d7307300 |
12200211200 has 108 divisors (see below), whose sum is σ = 31172046528. Its totient is φ = 4722585600.
The previous prime is 12200211137. The next prime is 12200211209. The reversal of 12200211200 is 211200221.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (12200211209) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167654 + ... + 229146.
Almost surely, 212200211200 is an apocalyptic number.
12200211200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12200211200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15586023264).
12200211200 is an abundant number, since it is smaller than the sum of its proper divisors (18971835328).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12200211200 is an equidigital number, since it uses as much as digits as its factorization.
12200211200 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 61550 (or 61531 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 11.
Adding to 12200211200 its reverse (211200221), we get a palindrome (12411411421).
It can be divided in two parts, 1220021 and 1200, that added together give a palindrome (1221221).
The spelling of 12200211200 in words is "twelve billion, two hundred million, two hundred eleven thousand, two hundred".
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